The 1057387-1 is a type of socket connector manufactured by TE Connectivity. It is a recessed panel mount, rack and panel style, 4-way IDC type connector. This connector is made from UL 94V-0 polyester, which offers flame retardant protection. This connector is also available with a unshielded option, allowing it to be used for common applications. It can be used for a broad range of applications, including networking, automotive, and telecommunications. Other features include a pre-load cam, integral alignment keyway, an optional EMI shield, and plastic fingers for stability. This connector is suitable for the high speed data rates of modern communication systems.